Rendering your home will help prevent penetrating issues and water ingress. Certain types of bricks especially those in exposed areas become susceptible to damp when they are exposed to the elements over a prolonged period of time. Water will seep in through the solid brick wall and into the house, which is never a good thing. Incorporating a layer of render to the external part of the wall of your home creates a barrier that blocks the passage of water and stops damp from happening.